public static void SetValue(object target, string[] memberNames, Func <object> valueThunk, Action <ObjectResolvingContext> resolve)
{
if (valueThunk == null)
{
throw new ArgumentNullException("valueThunk");
}
if (target == null || memberNames == null || memberNames.Length < 1)
{
return;
}
object container = target;
if (memberNames.Length > 1)
{
container = GetValue(target, memberNames, 0, memberNames.Length - 1, resolve);
if (container == null)
{
throw new InvalidOperationException(string.Format("The '{0}' member value is null of '{1}' type.", string.Join(".", memberNames, 0, memberNames.Length - 1), target.GetType().FullName));
}
}
//创建构件解析上下文对象
var context = new ObjectResolvingContext(target, container, memberNames[memberNames.Length - 1], valueThunk, string.Join(".", memberNames));
//调用解析回调方法
if (resolve == null)
{
DefaultResolve(context);
}
else
{
resolve(context);
if (!context.Handled)
{
DefaultResolve(context);
}
}
var member = context.Member;
if (member == null)
{
throw new KeyNotFoundException(string.Format("The '{0}' member is not exists in the '{1}' type.", context.MemberName, context.Container.GetType().FullName));
}
switch (member.MemberType)
{
case MemberTypes.Field:
((FieldInfo)member).SetValue(context.Container, JF.Common.Convert.ConvertValue(context.Value, ((FieldInfo)member).FieldType));
break;
case MemberTypes.Property:
((PropertyInfo)member).SetValue(context.Container, JF.Common.Convert.ConvertValue(context.Value, ((PropertyInfo)member).PropertyType), null);
break;
}
}
public static object GetValue(object target, string[] memberNames, int start, int length, Action <ObjectResolvingContext> resolve)
{
if (target == null || memberNames == null || memberNames.Length < 1)
{
return(target);
}
if (start < 0 || start >= memberNames.Length)
{
throw new ArgumentOutOfRangeException("start");
}
//创建解析上下文对象
ObjectResolvingContext context = new ObjectResolvingContext(target, string.Join(".", memberNames));
for (int i = 0; i < Math.Min(memberNames.Length - start, length); i++)
{
string memberName = memberNames[start + i];
if (memberName == null || memberName.Trim().Length < 1)
{
continue;
}
if (context.Value == null)
{
continue;
}
context.Handled = true;
context.MemberName = memberName;
context.Container = context.Value;
context.Value = null;
//解析对象成员
if (resolve == null)
{
DefaultResolve(context);
}
else
{
resolve(context);
if (!context.Handled)
{
DefaultResolve(context);
}
}
//如果解析被终止则退出后续解析
if (context.IsTerminated)
{
break;
}
}
return(context.Value);
}
